This kind of stuff shouldn't even be taught at all. The documentation is publicly available, it is not rocket science complicated too! Very straight forward and easy to comprehend.
When people ask to teach them how to fly the PMDG, the pros would always say "RTFM" I wonder what's the difference between the PMDG and VRC when both are software that has documentations available online. It just needs to be utilized, clearly not everyone has the initiative to read it first, especially those who really need it. Teaching basic VRC operations over and over and over and over and over again is just a complete waste of training resource when an online documentation (a comprehensive one too!) is available.